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Add PowerShell example to differential database backup article
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24 changes: 22 additions & 2 deletions ...al-databases/backup-restore/create-a-differential-database-backup-sql-server.md
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Expand Up @@ -15,7 +15,7 @@ helpviewer_keywords:
---
# Create a Differential Database Backup (SQL Server)
[!INCLUDE [SQL Server](../../includes/applies-to-version/sqlserver.md)]
Create a differential database backup in [!INCLUDE[ssnoversion](../../includes/ssnoversion-md.md)] using [!INCLUDE[ssManStudioFull](../../includes/ssmanstudiofull-md.md)] or [!INCLUDE[tsql](../../includes/tsql-md.md)].
Create a differential database backup in [!INCLUDE[ssnoversion](../../includes/ssnoversion-md.md)] using [!INCLUDE[ssManStudioFull](../../includes/ssmanstudiofull-md.md)], [!INCLUDE[tsql](../../includes/tsql-md.md)], or PowerShell.

<a id="BeforeYouBegin"></a>

Expand Down Expand Up @@ -145,7 +145,27 @@ BACKUP DATABASE MyAdvWorks
WITH DIFFERENTIAL;
GO
```

## <a name="PowerShellProcedure"></a> Use PowerShell

Use the `Backup-SqlDatabase` cmdlet. To specify a differential database backup, use the `-Incremental` parameter along with `-BackupAction Database`.

> [!NOTE]
> These examples require the SqlServer module. To determine whether it's installed, run `Get-Module -Name SqlServer`. To install it, run `Install-Module -Name SqlServer` in an administrator session of PowerShell.
>
> For more information, see [SQL Server PowerShell Provider](/powershell/sql-server/sql-server-powershell-provider).

### Example (PowerShell)

The following example creates a differential database backup of the `<myDatabase>` database to the default backup location of the server instance `Computer\Instance`. A previous full database backup is required before a differential backup can be created.

For full syntax examples, see [Backup-SqlDatabase](/powershell/module/sqlserver/backup-sqldatabase).

```powershell
$credential = Get-Credential

Backup-SqlDatabase -ServerInstance Computer[\Instance] -Database <myDatabase> -BackupAction Database -Incremental -Credential $credential
```

## Related content

- [Differential backups (SQL Server)](differential-backups-sql-server.md)
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